Sink trap



FIG. 1 is a side perspective view of a sink trap showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof as seen from the back of my design, as depicted in FIG. 1, the opposite side elevational view being essentially a mirror image;

FIG. 4 is a bottom view thereof;

FIG. 5 is an end view thereof as seen from the left side of FIG. 3; and,

FIG. 6 is an end view thereof as seen from the right side of FIG. 3.

In FIGS. 2 and 6 the broken lines shown therein illustrate portions of the article and form no part of the claimed design. 

The ornamental design for a sink trap, as shown and described. 